I recently upgraded from an old Intel Pentium socket 423 board to an MSI K9N4 Ultra board. I installed an Athlon 64 +3800 processor and two sticks of PNY Optima DDR2 667 512MB memory. When I booted the system up, I went through bios and input my settings. Every thing looked good until my operating system tried to load. When my operating system tried to boot, the system reset. I then recieved the screen saying Windows did not load properly, what do you want to do. I tried starting normally, then booting to safe mode, and finally command line all with the same result of the system reseting. I run Windows XP Professional with the latest updates from Microsoft's website.

I am looking for help in resolving this problem.

If you have any questions about additional information let me know.

I wonder if I should reinstall my old MB and load up the drivers on the disk from the new Motherboards manufacturer.

When you make major changes to the hardware on your computer and are using a hard drive that has a Windows installation on it that was installed and Setup to different hardware, XP cannot deal with that properly, and will hang when it is supposed to load, and/or give you error messages.
Usually you can fix that situtaion by doing an XP Repair Setup, if there was nothing wrong with your hard drive.

An XP Repair Setup will not harm your existing Windows installation, and will set the Windows installation to the new hardware, but if there is anything else wrong with the Windows installation it can only fix things Windows detects as wrong, and/or replace corrupted or missing Windows files that are on your original XP CD.
You will need a Windows CD of the same version as the one of your Windows installation, and the Product Key, preferably the one that was used to install it, but it can be one for the same version as the one of your Windows installation.

How to do an XP Repair Setup, step by step:
http://www.windowsreinstall.com/win...

After Setup is finished, you must load the drivers for the new mboard in order for Windows to have all the proper information about the mboard.

If your Windows CD did not have SP1 or SP2 included, and you updated to SP1 or SP2, you will have to install that again to get SP1 or SP2 working properly again.

You must have at least SP1 updates loaded to support USB 2.0, and any hard drives larger than 128gb (137gb manufacturer's size).

I agree with Tubesandwires. Your old installation of XP will not work with your new hardware...you're gonna have to reinstall XP using the "repair install" method

Thanks for the information.

I ran the repair module only to find that my cd may be damaged. While the repair was installing, I recieved a message stating to insert the microsoft windows CD into the cd drive. I removed the CD to check it out. It appeared clean with only minor blemishes on it (2 knicks about a mm long each). After remove it and reinserting it a couple times I gave up. I canceled the operation and which kicked out a Fatal Error. The error reported was a duplicate cycle error (or something to that nature) when trying to access the file asms in the i386 directory located on the CD. It stated that either my disk was dirty or damaged or that the files on the network work corrupted (part two does not apply.

I think I will go ahead and reinstall my old motherboard. Then I will see if I can repair my installation from there. If that does not work, a new copy of windows will be in order. If it does work, I will be baffled. But at least I will not needlessly give to Microsoft.

"I think I will go ahead and reinstall my old motherboard. Then I will see if I can repair my installation from there."

That will get you nowhere. If there was nothing wrong with your Windows installation after your attempt to run the XP Repair Setup (it sounds like you didn't get far enough to cause any harm), Windows will work fine with the old mboard, and running an XP Repair Setup is only of use to you if you are drastically changing hardware, which you would not be if you were using the old mboard.

A "nick" or two on a Windows CD is probably bad news - most CDs can still be read when they are scratched, but they may not be when they are nicked.
You could try the CD in another CD drive, but it probably won't help.
If you know someone with the same version of XP Pro (e.g. original, or with SP1, or with SP2) make a copy of that disk onto a CD-R disk (not a CD-RW) and use your Product Key with the copy.

Not having a readable Windows CD is something you're going to have to deal with in any case, sooner or later.